Patents by Inventor Heinrich Heinzlreiter

Heinrich Heinzlreiter has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Apparatus and method for forming micro spike liners and a micro spike liner formed thereby
    Patent number: 6203741
    Abstract: An apparatus and methods for forming micro spike thermoplastic liners and micro spike thermoplastic liners formed thereby are provided. A textured thermoplastic liner having at least one roughened surface with a plurality of irregularly shaped projections extending therefrom is disclosed. The thermoplastic liner of the subject invention is formed by using a calendering roll having a generally cylindrically shaped body with a non-smooth outer surface and a plurality of blind apertures, each having an irregularly shaped opening formed coextensively with the non-smooth surface. The liner is formed by having the non-smooth surface of the calendering roll impress a roughened pattern onto the liner and simultaneously form the plurality of irregularly shaped projections. The calendering roll is formed by initially drilling a plurality of blind apertures and, subsequently, roughening the outer surface of the roll such that the openings of each of the apertures are each caused to be irregularly shaped.
    Type: Grant
    Filed: April 4, 2000
    Date of Patent: March 20, 2001
    Assignee: AGRU Kunststofftechnik GmbH
    Inventor: Heinrich Heinzlreiter
  • Apparatus and method for forming micro spike liners and a micro spike liner formed thereby
    Patent number: 6132845
    Abstract: An apparatus and methods for forming micro spike thermoplastic liners and micro spike thermoplastic liners formed thereby are provided. A textured thermoplastic liner having at least one roughened surface with a plurality of irregularly shaped projections extending therefrom is disclosed. The thermoplastic liner of the subject invention is formed by using a calendering roll having a generally cylindrically shaped body with a non-smooth outer surface and a plurality of blind apertures, each having an irregularly shaped opening formed coextensively with the non-smooth surface. The liner is formed by having the non-smooth surface of the calendering roll impress a roughened pattern onto the liner and simultaneously form the plurality of irregularly shaped projections. The calendering roll is formed by initially drilling a plurality of blind apertures and, subsequently, roughening the outer surface of the roll such that the openings of each of the apertures are each caused to be irregularly shaped.
    Type: Grant
    Filed: August 25, 1997
    Date of Patent: October 17, 2000
    Assignee: AGRU Kunststofftechnik GmbH
    Inventor: Heinrich Heinzlreiter
  • Calendared textured liner
    Patent number: D387209
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: December 9, 1997
    Assignee: AGRU Alois Gruber GmbH
    Inventor: Heinrich Heinzlreiter